Finding the Fourth Proportional to 99,064.08, 136,717.86 and 56,614.38

Step by Step Solution

1. Step 1: Write the proportion equation
   99,064.08 : 136,717.86 = 56,614.38 : x
2. Step 2: Convert to fraction form
   99,064.08/136,717.86 = 56,614.38/x
3. Step 3: Cross multiply
   99,064.08x = 136,717.86 × 56,614.38
4. Step 4: Simplify right side
   99,064.08x = 7,740,196,878.83
5. Step 5: Solve for x
   x = 7,740,196,878.83/99,064.08
6. Step 6: Final answer
   x = 78,133.23